Through dietary and lifestyle changes, one can potentially slow down the aging process by increasing telomerase activity levels in the body. Telomerase is an enzyme that helps rebuild telomeres, the end caps of chromosomes, and longer telomeres are associated with younger cells. A study found that making improvements in diet, supplements and lifestyle for just 3 months increased telomerase activity levels in men with prostate cancer by 29.84%. Lifestyle factors like managing stress, regular exercise, meditation and following a whole foods diet can help reduce disease risk and extend one's lifespan. Increasing intake of certain foods, herbs and supplements may also help boost telomerase activity levels and slow aging.